Today's leftists seem to not have any coherent philosophy at all. It's not better on the other side. Everything seems to be about grievances and assigning blame rather than rationally discussing practical solutions.

There's a significant misanthropic sentiment on the left stemming from, among other things, the mid-century environmental movement. It creates for a maddening incoherency, but I guess that's typical of all politics at scale.

The misanthropy is infused in popular culture, and specifically in the way ecological sciences and history (for additional reasons) is taught in schools. I not infrequently have to discuss this with my kids when they recite something they've learned in school and I can hear the misanthropic cynicism in the framing and intonation.

That is definitely the impression one would get if one watched Fox News.

If one consumed nonfiction media one might get a different impression.

Y’all are equally incomprehensible to us. Drastically reduced immigration, ineffective policies for incentivizing pregnancy, and no cash incentives for having multiple children (the one intervention that has been found to have a real, albeit modest impact on TFR). Degrowth under those conditions is all but certain.